1546201620644 has 6 divisors (see below), whose sum is σ = 2705852836134. Its totient is φ = 773100810320.

The previous prime is 1546201620631. The next prime is 1546201620727. The reversal of 1546201620644 is 4460261026451.

It can be written as a sum of positive squares in only one way, i.e., 1422938836900 + 123262783744 = 1192870^2 + 351088^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 193275202577 + ... + 193275202584.

It is an arithmetic number, because the mean of its divisors is an integer number (450975472689).

Almost surely, 2^{1546201620644} is an apocalyptic number.

It is an amenable number.

1546201620644 is a deficient number, since it is larger than the sum of its proper divisors (1159651215490).

1546201620644 is a wasteful number, since it uses less digits than its factorization.

1546201620644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386550405165 (or 386550405163 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 41.

The spelling of 1546201620644 in words is "one trillion, five hundred forty-six billion, two hundred one million, six hundred twenty thousand, six hundred forty-four".